From: Ben Nizette <bn@niasdigital.com>
To: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: pierre@ossman.eu, s.hauer@pengutronix.de,
kernel <kernel@avr32linux.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] MMC Core: Drop initialization frequency floor to 50kHz
Date: Thu, 02 Jul 2009 22:17:36 +1000 [thread overview]
Message-ID: <1246537056.2980.60.camel@linux-51e8.site> (raw)
In-Reply-To: <20090702135849.21370282@hskinnemoen-d830>
On Thu, 2009-07-02 at 13:58 +0200, Haavard Skinnemoen wrote:
> Ben Nizette wrote:
> > Was recently merged. This is too fast for at least one setup
> > permutation - the one on my desk which through trial and error won't
> > initialise at anything above ~350kHz (older Sandisk 256MB SD on
> > atmel-mci).
>
> What kind of board is this? It sounds a bit like the CMD or DATA0
> pull-up is too weak...
It is a custom board (you'll see the board support soon) but those
pullups are 47k same as NGW100 and STK1000.
'scope confirms all the waveforms are crisp and correct.
>
> Haavard
next prev parent reply other threads:[~2009-07-02 12:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-01 23:49 [PATCH] MMC Core: Drop initialization frequency floor to 50kHz Ben Nizette
2009-07-02 7:18 ` Pierre Ossman
2009-07-02 11:10 ` Ben Nizette
2009-07-02 11:58 ` Haavard Skinnemoen
2009-07-02 12:17 ` Ben Nizette [this message]
[not found] ` <4B3E570C.2060602@yahoo.es>
[not found] ` <63809451-ED1D-487A-AE63-F72B23D136D8@niasdigital.com>
[not found] ` <4B3F019F.6010306@yahoo.es>
2010-01-02 9:07 ` [PATCH v2] mmc: lower init clock frequency to 300kHz Ben Nizette
2010-01-02 12:08 ` Pierre Ossman
2010-01-02 22:23 ` [PATCH v3] mmc: Make ID freq configurable Ben Nizette
2010-01-02 23:04 ` Robert Hancock
2010-01-02 23:38 ` Pierre Ossman
2010-01-03 8:00 ` Hein_Tibosch
2010-01-04 21:07 ` Hein_Tibosch
2010-01-05 12:24 ` Sascha Hauer
2010-01-04 21:58 ` Hein_Tibosch
2010-08-27 20:44 ` Chris Ball
2010-08-28 0:44 ` Hein_Tibosch
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